Kfir Frenkel

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Co-founder of thredUp.com<p>Opinions expressed by <i>Entrepreneur</i> contributors are their own.<p>Most of us work long hours: 40, 50 or even 60 hours each week. But chances are, given distractions like online entertainment, office snacking habits and ill-designed time management, we're only churning out …

A new image from the Hubble Space Telescope captures a star in our own galaxy that appears ready, on astronomical time scales, to explode.<p>In the autumn of 1604, sky-watchers of the world saw something special. Actually, it was more than special: the death of one of our own galaxy's stars, an …

Ziferblat is London's first pay-per-minute cafe, based on a Russian chain where 'everything is free, except the time you spend there'<p>Ever felt you've overstayed your welcome in a cafe, by reading, working or surfing the web while hugging the latte you bought two hours ago? Pay-per-minute cafes …

The Pirate Bay has announced a surprising new tool to foil copyright enforcers, moving the entire site to a distributed network accessible only through Pirate Bay's own unique software. The new system builds on open source projects like LibTorrent, holding all potentially incriminating data in a …

Great athletes put the odds in their favor by having a routine that helps them start each day right. Why don't you? Here are three tips to do just that.<p>Most top athletes go through a preparation routine before every game which starts long before they get on the field. The best ones usually start …